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Documentation #43034

open

doc: document large omap warning for directory fragmentation

Added by Patrick Donnelly over 4 years ago. Updated almost 2 years ago.

Status:
New
Priority:
High
Assignee:
Patrick Donnelly
Category:
-
Target version:
-
% Done:

0%

Tags:
Backport:
pacific,octopus,nautilus
Reviewed:
Affected Versions:
Labels (FS):
Pull request ID:

Description

https://docs.ceph.com/docs/master/cephfs/health-messages/

and

https://docs.ceph.com/docs/master/cephfs/dirfrags/

For example:

cluster [WRN] Large omap object found. Object: 56:f7d15b13:::.dir.f91aeff8-a365-47b4-a1c8-928cd66134e8.44130.1:head Key count: 380425 Size (bytes): 82896978

Explain procedure for resolving this: figure out directory path and load the directory into MDS cache to fragment.

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